cheap source for compressed air?

Compressed air seems overpriced at electronics stores: at $20 (Canadian) for the applicator with 2 cartridges. I have not been able to locate a less expensive source. Any suggestions? (Canada only please).

This is assuming compressed air is the best way to clean beneath the keyboard. Or is there a better way?

You could just buy a small airtank. Usually they have a valve to fill them that is the same thing on a bike tire. You could fill it at a service station for $.75 or you could buy a bike pump, but pumping it up yourself is a pain. Buy a $5 "extension cable" for air, a cheap hose essentially, and a trigger valve, which will cost another $3. The tank might cost $15.

Or, buy a nozzle for cake decorating stuff. And some balloons. Blow up the balloon with thenozzle inserted in the mouth. There you go! Condensation? Hold the balloon in the freezer so any condensation freezes along the sides.

no, not the industrial/construction level ones. I'm talking about the household bike pump kinds. No storage tanks. Could also be used to pump your car/bike tires, and blow away dust (comes with different nozzles).

And the storage tanks that are filled up at stations would eventually start to leak air as they age. I had one.

If you use an air compressor to blow it out, you'll need to make sure you have a filter on the end to catch any condensation that may have accumulated in your air tank. You don't wanna risk a drop of water finding its way into your computer.

Used to love playing with compressed air - great way to wake someone up; spray it on their arse. Comes out freezing cold too.

I had a can of it and was quite expensive, didn't last very long either. I found I was using it a lot, getting right of dust off the screen or something - something that I could easily do by getting a tissue and wiping it.

Used to love playing with compressed air - great way to wake someone up; spray it on their arse. Comes out freezing cold too.

I had a can of it and was quite expensive, didn't last very long either. I found I was using it a lot, getting right of dust off the screen or something - something that I could easily do by getting a tissue and wiping it.

Waste of money really; fun to play with though.

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I am frugal so will likely only use the compressed air for cleaning where tissues don't reach such as beneath the keys. An arse spray sounds like fun tho. I got a can at Staples at a very reasonable price but have not tried it yet. Can I use it to get high too?

Remove inards and caps from pen so you only have the barrel. Blow party baloon right up. Stick the end of the party baloon at the top of the pent and seal with your index finger curled around your thumb then use the other end as a nozzle. Should give you at least a good 10 - 15 second burst of air.

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